From the monthly archives:

May 2007

Cheap backup option for hobbyist photographers

by jaganath on May 10, 2007

If you are travelling with your photography equipments, probably you will not like to lug your laptop around. It is simply too much to carry. There are options like PMPs with built in hard drives and SD card slots which you can carry. They are ideal backup solutions, but bit expensive at $200 upwards. I hit up on a simple idea, which can help me save a lot of money but give me an excellent backup option with no need to invest any additional Rupee. I pulled out the following items which I no longer use:

  • A old Sharp Zaurus Linux PDA with a compact flash and SD card slot.
  • A few compact flash cards varying in capacity from 512 MBto 2GB. Total capacity: 4 GB.

Any PDA with both a compact flash and SD card slot will do. Many older iPAQs had this option. You can get those at a pretty cheap price from ebay. Whenever you want to take a backup, you can just insert the CF and SD cards simultaneously and copy over the contents from the SD card to the CF card. Then delete the pictures from the SD card. The SD is ready to shoot again.

I was just wondering what to do with all the CF cards from my old camera and PDAs. Now they are back in action!

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Top 5 technology websites

by jaganath on May 10, 2007

If you are a tech enthusiast, probably your feedreader is already overflowing with news that you cannot simply catchup with. With gazillion technology websites out there, it is too difficult to cope up with the information overload. At the end of the day, you will end up reading the same news from multiple sites, thus wasting your time.

The following are the only sites that I scan everyday to read the technology news. My observation is that you won't miss out any important news if you visit only these sites.

ArsTechnica. The best technology news site. Alongwith latest news, they also give in-depth analysis of technology developments, which are very insightful and thought provoking. There are regular articles on new CPUs, gaming devices and news coverage specific to Microsoft and Apple and also open source in general.

Engadget. This is the place where you need to hang out if you want to know what is the latest and greatest gadget out there in the digital jungle. Technology with an extra dash of humour is just irresistible.

Techcrunch. This blog is a must read if you want to know what is the latest/emerging trend in internet or technology in general. Michael covers new VC investments in startup companies/companies which go out of business/companies which are up for sale in ebay etc., which generally gives you an idea of what is hot and what is not.

Slashdot. Nerd hangout. More than the stories, the nerds flock this site for the quality discussions that happen on each of the article that is published. Must read if you want to know "more than just the news".

Lifehacker. Not necessarily a technology/gadget website. If you spend atleast 8 hours of a day in front of your computer, this weblog is a must read. Their coverage includes the latest software that you can download for your PC/Mac, tips and tricks to efficiently use your computer and ideas to make your online life much easier and simpler.

PS: This blog post is created for the group writing project of Problogger. Visit Problogger to read more "top 5" items in the same project.

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About

by jaganath on May 10, 2007

Jaganath.net is (more or less) a personal blog site of Jaganath, a software engineer hailing from the southern most tip of India. I usually rant a lot about technology, occassionally I give away some tips too. I earlier used to blog at My two cents , a wordpress hosted blog. If you like the content here, you may like those posts in my old blog too.

When I am not in front of my computer, you may find me shooting some macro photographs or out in the sun shooting some butterflies. I recently bought a Nikon D40 as an upgrade to my Canon S50. You can track my photography related articles/reviews in this link.

If you want to contact me for any reason, please feel free to shoot a mail to jaganath [at] jaganath [dot] net.

Thank you very much for visiting my website!

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Power Supplies and Gadgets

by jaganath on May 10, 2007

In the last one year, about four of my power supplies have failed, including the camera's and the wireless router's. Erratic electricity distribution in these areas could be the reason. One thing common between all the four power supplies was the that they were electronic. None of my transformer based power supplies have failed in the last many years. If any of the new electronic gadget that you are buying has an electronic power supply, just buy an equivalent universal power supply from the local electric store and use only that - it will keep your equipment safe from poor power regulation in this part of the world (read: India).

Now, how do you identify an electronic or a transformer based power supply? Just by the sheer weight and size of it. Electronic ones (SCR based) are light and small whereas transformer based ones are heavy and usually larger than their electronic counterparts.

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Why I chose the Nikon D40

by jaganath on May 8, 2007

After my trusted Canon S50 died recently, I started my search for a new camera (which was necessary because the cost of repairing it was equivalent to buying a new one). Interestingly, Canon has not announced any new camera in the 'S series' after the S80. The home page at Powershot.com does not show any camera in the S series, a flagship high end camera line, sharing the same sensor and lens from the acclaimed G series.

My search started with the typical prosumer cameras. I shortlisted the following.

Kodak P880. Arguably, one of the best Kodak SLR-like cameras ever created. A wide angle (24-140mm) lens, 8 Megapixels and an asking price of INR 22k at JJMehta made it highly tempting. Unfortunately, it is discontinued now by Kodak. If I get it for 15-16K today, I will definitely buy it as a backup camera.

Fujifilm S9600. Another nice enthusiast camera. Though the 10 megapixel sensor is known to be little noisy, the overall reception for this camera is pretty good. 10x superzoom means this is a real bargain.

Fujifilm S6500FD. Similar in feature set to the above camera, but with a lower resolution of 6 megapixels. But the sensor used is the same as in the ultra populer Fujifilm F30 - that means very good low light capabilities.

Panasonic FZ50. Probably the best prosumer camera out there in the market in terms of image quality. Looks and feels like a Digital SLR. But still, the focussing times are not good as a DSLR.

Other cameras I considered include the Canon G7 too.

After some extensive research, I dropped the idea of going for a prosumer camera. My main concerns were:

  • The incredible depth of field offered by these cameras. You cannot be so creative when you can't control the DoF on your camera. Getting blurred backgrounds/isolation shots in these kind of cameras is too difficult, if not impossible.
  • Slow auto focus. This is a bane for all amateur cameras out there.
  • Poor low light capabilities.

Again, I was using a camera with SLR like feature set for more than 3 years. So I thought it is high time to take the plunge. The only problem being my budget. It was very tight. I had a max of INR 30k (which is about $720 in today's excahnge rates).

When I looked out searching for low end SLRs, the following are what I found.

Canon EOS 400D (Digital Rebel XTi). A superb 10 MP camera from the leader. But way out of my budget. Has all the features an amateur photographer needs. Add a self-cleaning sensor and you have a winner here. But unfortunately, it was way out of my budget. It costs around 44k in the Indian market now with the kit lens. Another reason I dropped this from my list was the poor reviews the kit lens got. I did not consider the EOS 350D(Digital Rebel XT) as it is almost one generation old now.

 

Pentax K100D

 

Pentax K100D. I almost bought this. Has all the features provided by EOS400D. The reviews all appreciate the excellent image quality produced by the camera. An innovative feature of the camera is image stabilization at sensor level, which means that any lens mounted on this camera becomes a IS/VR lens! The price is less than 30k, which means a real bargain. But I dropped the idea at the last moment because of the poor availablility of Pentax accessories in India and the almost non-existent after sales support.

Nikon D40/D40x. That leaves me with only one option, the Nikon D40/D40x. Sure, it misses quite a few features when compared to the above two. Prominent among them is the lack of a DoF preview button, missing auto bracketing, auto focus ability only with AF-S lenses and a 3 point focus system. Everything else goes well for this camera. A nice and bright 2.5 inch LCD, small and a light body and a very good kit lens. Though AF-S lenses where initially expensive, these days the prices have reduced to a level where they are very affordable. So why the D40 and not D40x? While 6 MP to 10 MP pixels looks like a big difference in terms of sheer number of pixels, the effective size of the final photograph when printed, is not significantly different . The D40x gives a better cropping freedom though. Read this if you need a little more explanation on this. For the extra money I spend on the D40x, I can very well buy the Nikon 55-200 mm VR lens, which will be great for shooting outdoors.

So, thats the story. In the coming days, I will post my experiences with this little camera.

Related: Some close up shots taken with my Nikon D40.

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Books

by jaganath on May 5, 2007

This is a list of books that I have read, enjoyed and learned a lot from. The topic ranges from Technology to Photography. This page is always under construction. As and when I read a good book that I would like to recommend to others, I update this page.

Photography

 

 

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History of Tamilnadu, today’s featured article on Wikipedia!

by jaganath on May 5, 2007

History of TamilNadu is featured as a front page article on Wikipedia today. Wikipedia acknowledges this as one of the best articles created by the Wiki community. Thanks to all the people who pulled this off. Let the whole World read the history of the World's oldest civilization!

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My proud new possession

by jaganath on May 3, 2007

Yes. Finally I bought what I wanted to buy for a long time now. My first Digital SLR . Expect a review in a few weeks time.

Nikon D40

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Further proof that Digg is controlled by teens and kids

by jaganath on May 2, 2007

All hell broke loose at technology news site Digg today. The front page of Digg was full of posts about a key which can be used to decode HD DVD movies. It all started when Digg 'moderators' deleted a few stories on the above mentioned key. News spread like wild fire and there were all sorts of key stories posted to digg in no time. Almost all these key stories received not less than 2000+ diggs. To add fuel to fire, a digg crew member posted a blog entry about "Digg's interest to protect intellectual property rights of its owners". That was enough. There was more mayhem. Incidentally, this post was just an eye wash, as Digg always carried stories on Windows Vista/Photoshop and OSX86 cracks.

After absolute chaos, digg founder Kevin Rose admitted the mistake and assured that such things will not happen in the future.

While this incident sounds very funny and silly, it is a very clear indication that Digg is mostly controlled by teens and kids. Posts like "Ubuntu FTW!", "Apple all the way" are pretty common in the comments section of Digg. While initially I was a fan of Digg, I eventually lost interest because of the fanboyism and switched back to Ars Technica. They only cover tech news that matters with a great insight.

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ReadyBoost on Windows Vista: How to hack it

by jaganath on May 1, 2007

What is ReadyBoost?

Microsoft Windows Vista comes with a horde of new features. Among them is a unique new feature called ReadyBoost which does not exist in any other operating system. ReadyBoost is a disk caching technology which improves the system performance by using a flash based memory like SD/Compact flash card or a USB memory stick. The idea behind ReadyBoost technology is simple: Random read times on flash memory is faster than that on a hard drive. By storing frequently accessed programs or program data in the flash drive, Vista can access these data faster, thus providing better response times. When you plug in a USB memory stick into your Vista PC, Vista can use all or part of this stick as a cache to store the ReadyBoost data. If the memory stick can handle at least 3.5MB/second read time for 4kb blocks and 2.5 MB/second write time for 512kb blocks, it can be used for this purpose.

If you are planning to buy a memory stick for ReadyBoost, ensure that it supports at least this speed. Thankfully, many new USB memory sticks come with ‘ReadyBoost ready‘ logo. When you plug in a device which meets these basic requirements, Vista automatically launches a dialog box which allows you to use it for ReadyBoost. Also, nothing will happen if you pull out the USB stick while Vista is using it. Remember, it is only being used as a cache – if Vista can’t find your memory stick, it will happily fetch the data from the hard drive.

The ReadyBoost hack

Now what if your memory stick just falls short of the basic requirements for ReadyBoost? Well, Vista will naturally reject it. But then, there is a registry hack by which you can force any external drive to be used for ReadyBoost. But note: While you can use an external hard drive for this purpose, it will not give any performance boost for obvious reasons.

Plug-in your memory stick. Right click on the device on windows explorer and select properties. Select the ReadyBoost tab and check “Do not retest this device”. Now fire up the registry editor and navigate to HKLM -> Software -> Microsoft -> WindowsNT -> CurrentVersion -> EMDMgmt. All your devices which you attempted to use for ReadyBoost are listed here. Select the one you intended to use and change the following settings.

  • DeviceStatus to 2
  • ReadSpeedKBs to 1000 (hexadecimal)
  • WriteSpeedKBs to 1000 (hexadecimal)

Plug-in the memory stick again. You will now be greeted with a screen giving you an option to use it for ReadyBoost. Select how much space you want to use for this feature – you are done! Enjoy your ReadyBoost now!

Caution: Editing registry is only recommended for experienced users. If you have never done this before, better get a ReadyBoost ready memory stick than messing up with your registry. You are warned.

 

Related: Know your Vista - 2: Windows Vista Sideshow

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